Hyundai Steel reduces sinter plant pollution

Hyundai Steel will reduce air pollutant emissions from its sinter plants by more than 50 percent by 2021 through the operation of a sinter cleaning system. According to the company, the amount of pollutants emitted by sinter plants in Dangjin, South Chuncheon Province has been reduced since the adoption of SGTS. Emissions of hazardous air pollutants such as sulfur oxides and nitrogen oxides have been reduced to 30ppm and 40ppm from the original 140ppm and 160ppm.

SGTS uses catalytic converters to remove nitrogen oxides and adds sodium bicarbonate to the sinter mixture to remove sulfur oxides from the exhaust gases.

Two of the three SGTS began operations in May and June, respectively, and the complementary system will be completed by June 2020.

If all three systems continue to operate without interruption, the company expects to reduce the amount of hazardous air pollutants to 10,000 tonnes in 2021 from 23,292 tonnes in 2018.